This versital tool securely holds trigger guards, hammers, top jaws, etc. for filing, grinding, polishing or engraving. Machined from solid aliminum it will firmly hold a trigger guard bow up or bow down. It can be clamped in your vise in any position to provide easy access to any surface. The end of the bar is threaded to hold small items such as top jaws and hammers exposing all surfaces for controlled, careful work without concern for movement. An ingenious tool that will quickly pay for itself in saved time and improved work.